Antiseptic telephone-mouthpiece.



N. M. ENGLISH & H. M. LICHTENSTEIN. ANTISEPTIC TELEPHONE MOUTHPIBCE. APPLICATION mum 0011, 1000.

956,953. Patented May 3, 1910.

WITNESSES: IN VEN TOR 5 $1 .4. 1/1. 11W; ,V BY

71.75, 11 ,134,? ATTORNEY UNITED sTATns PATENT oFFToE.

WILLIAM M. ENGLISH AND HARRY M. LI CHTENSTEIN, OF SAN FRANCISCO,

CALIFORNIA.

ANTISEPTIC TELEPHONE-MOUTHPIECE.

To all whom it may concern:

Be it known that we, lViLLiAM M. ENG- L'ISII and IIARRY M. LIGHTENSTEIN, citizens of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Antiseptic Telephone-lvlouthpieces, of which the following re a specification.

The object of the present invention is to provide a simple, cheap, and effective antiseptic telephone mouthpiece.

In the accompanying drawing, Figure l is a broken side elevation of the mouth-piece, a portion of the transmitter being shown in dotted lines; Fig. 2 is a longitudinal section thereof; Fig. 3 is a section on the line 3--3 of Fig. 2.

Referring to the drawing, 1 indicates a portion of a telephone transmitter to which our improved device is shown as attached. Said device comprises a bell-shaped mouthpiece 2, formed of glass or other plastic material, and a union or shell 3 for1ned of thin sheet metal. Said union is of a general cylindrical shape, but is formed at its rear end with threads 4, which are adapted to screw within the central socket of the telephone transmitten, its outer or front end is closed by a wall 12, perforated,'as shown at 11, to permit the sound producing vibration to pass therethrough. In order to secure the shell or union within the mouthed to enter sockets or recesses 8 formed in the inner end 5 of the mouth-piece. The slots 7 are of such width that the sections of the transverse wall. 12 and of the cylindrical wall formed thereby can be compressed soilic'iently to permit the knobs (S'to pass within the inner end 5 of the mouth-piece, until said knobs arrive at the sockets 8, whereupon they spring into said sockets, and securely connect the union to the mouth-piece. Said union is secured within said mouth piece so that its front wall is behind but in Specification of Letters Patent. Application filed October 7, 1909.

. tending who Patented May 3, 1910. Serial Nb. 521,514.

close proximity to a deep circumferential internal groove 10. In this groove can be removably inserted a string or loop 9 of absorbent material, such as wicking, which is saturated with formaldehyde or other suitable disinfectant, and can readily be re moved from time to time and replaced fresh material.

The saturated wicking or other absorbent material constantly gives off vapor, which fills the interior of the mouth-piece, and destroys any germs which might enter in the ordinary use of the telephone.

The principal advantages of our invention are its cleanliness, cheapness, simplicity, and effectiveness. Glass has absolutely no porosity, and therefore does not harbor erms,

dust or the like, which can easily e removed therefrmn. As to its cheapness and simplicity, it will be observed that the device itself comprises only two parts, each of which costs but little to manufacture, and the two parts are easily assembled. The device is very effective, as the absorbent material contains suilicient disinfecting liquid to )ermeate the mouthpiece with its vapor an thus thoroughly disinfect it.

1. Au antiseptic telephone mouth-piece comprising a flaring mouth-piece proper made in a single piece, formed near the inner.

end with a deep circumferential internal groove adapted to receive absorbent material, and a union for connecting said mouth piece with the transmitter, secured within the mouth piece, and consisting of a cylin drical metallic shell, formed at one end with a perforated wall arranged within said mouth piece whollyv behind said groove.

but in close roximit-y thereto, said shell ex lly behind said wall and threaded on its rear end to screw within the central socket of the transmitter, substantially as described.

2. An antiseptic telephone mouth-piece comprising a flaring mouthiece ploper, and a union for connecting sai mout -p1oce with the transn'iitter, consisting of a cylindrical metallic shell threaded to screw within the central socket of the transmitter and formed at the end remote from the transmitter with a perfdrated wall, the mouthpiece being formed immediately outsidesaid wall with a deep circumferential in ternal groove adapted to receive absorbent nirterial, said shell being formed with slots in the wall and the part of the shell adja- 1*: thereto, whereby said part can be comised to enter said nloutli picee, substans described. Y

e. An' an tise tic telephone mouth-piece Comprising a dining; nionth-piece proper, and a unieu for coi'inecting said niouthpiece with the transmitter, consisting of fl cylindrical metallic shell threaded to screw ."'-1ithinv the central socket of the transmitter and ieil at 'theend remote from the fr'emn'ihter with a perforated wall, the womb-piece being formed immediately out le said Well with a. deep, (:imunferential aternsl groove adapted to receive absorbent i material, said shell being fornied with slots in the wall and the part of the shell adjacent thereto, whereby said part can be c0mpressed to enter said mouth-piece, and being also formed with knobs, the mouth-piece being formed with sockets to receive said knobs, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two sub scribing witnesses.

WILLIAM M. ENGLISH. HARRY M. LICHTENSTEIN.

Witnesses FRANCES M. \Vimni'r, D. R. RICHARDS. 

